29. The wings shell-ready and be sanded
3.3.1 Linkage of rudder flaps
General remark:
The articulation of the two rudder flaps can be done in several ways. It is make sure that a backlash-
free and resettable articulation is realized.
Below becomes exemplary a "Cross linkage" shown.
1. Production of the linkage made of 0.8mm steel wire and 1.2mm CFRP solid rod The steel wire
will be like on the pictures shown cut to length and cranked (Z-bend) and then with the CFRP
solid rod glued with superglue. The cut the linkage beforehand and the shorten the CFRP rod if
necessary. Before the bonding have to all adhesive surfaces roughened and degreased will. The
bonding is done with shrink tubing secured.
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2. Breakthrough for linkage in the cut upper planking. Edge of the breakthrough with low
viscosity cure superglue (preferably from inside to outside glue stains to avoid).
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3. Control horn mount.
To ensure a good introduction of force into the should ensure rudder flap the area around the
control horn be reinforced.
4. Control horn and servo are only starting glued after covering.
Note: When connecting, it must care must be taken that the linkage and place the control horn
in neutral form right angles. The same also applies to the rudder horn. This results in the same
rudder deflections up and down.
Both the elevator and spoiler servos the easiest way to tape (with masking tape wrap) or shrink,
if necessary grind, degrease and then with 5-min epoxy or heat seal adhesive on the fix the
planking on the inside.
Linkage variant exposed at the top
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3.3.2 Spoiler linkage
General remark:
The spoiler flaps are opened by simply pressing the flap open with the Servo arm. The closing is
made by a piece of plywood guaranteed.
